Acta Societatis pro Fauna et Flora Fennica, 25, n-.o 2. 17 



(A. L. Backman). — Differt a H. sphaeroideo praecipue indu- 

 mento densiore glandulis minoribus, habitu insigni dissimili. 



H. sphaeroideum. Gracile, vulgo longifolium; stolones graci 

 les, virentes, leviter tomentosi — albotomentosi, albovillosi, fo- 

 liolis sat magnis decrescentibus lingulatis — minutis angustisque 

 subhypogaei; folia obscure viridia — glaucescentia, mollia — 

 sat firma, longipetiolata, lingulata, obtusa — subacuta vel intima 

 acuta, rare- omnia brevia, sessilia vel subsessilia, obovata — 

 lingulata, vix denticulata, parce pilosa, subtus canovirentia le- 

 viter tomentella — floccosa pilosaque nervis distinctis; pedun- 

 culi graciles, erecti, virentes, floccosi — tomentelli vel superne 

 fuscescentes tomentosique, glandulis tenellis sat densis sub invo- 

 lucro densioribus pilisque albis sparsis nullisve vel basin vel 

 apicem versus densis — densissimis vestiti; capitula mediocria 

 — majora, laetiora, angustiflora, remote radiantia, plus minusve 

 striata vel estriata; involucra obscure virentia — fere nigra, 10 

 —11 mm alta, rotundata — subrotundata limbo breviore vel 

 aequilongo. tomentella — leviter tomentosa, densissime tenui- 

 nigroglandulosa ad basinque plus minusve laetevillosa vel om- 

 nino epilosa, squamae sat late lanceolato-subulatae acutissimae, 

 apicibus vix denudatis, interiores viridimarginatae. — Sibbo 

 Soderkulla, Skraddarby et Aspniis (W. Lauren); Kyrkslatt Knopps 

 in devexo pineti juxta Lilltrask, Ingels in pinetis alnetisque, 

 Qvarnby in devexo graminoso aprico; Inga Svartback in deve- 

 xis apricis graminosis saxosisve et in silvis acerosis vel mixtis, 

 Haga in silva acerosa et in devexo graminoso ad litus mari- 

 num, Dal in devexo agresti; Hausjarvi Herajoki et Riiliimaki in 

 silvis acerosis praecipue pinetis, in pascuis devexoque prati; 

 Ruskeala Ilola in loco sicco graminoso ad rupem (A. L. Back- 

 man). — H. aequilinguae proximum, sed vulgo magis pilosum 

 capitulis radiantibus involucrisque rotundatis densius glandulo- 

 sis. Vulgo longifolium, sed in locis apricis ad Sibbo Soderkulla 

 et Skraddarby, Inga Svartback et Hausjarvi Herajoki interdum 

 brevifolium. Interdum flagelliferum involucris flagellorum sub- 

 cylindricis. Specimina ut videtur pathologica folia forte dentata 

 involucraque magis pilosa habent. 



H. aequilingua. DitYert a H. mollimculo proximo capitulis 



